baber/WOPTO huggingface dataset:
Patent GB-867013-A (GB)
Title: Improvements relating to washers for threaded fasteners
IPC: F16B43/00
Filed: 1958-02-10
Abstract: 867,013. Bolting; washers. HI-SHEAR RIVET TOOL CO. Feb. 10, 1958 [Feb. 28,1957], No. 12069/59. Divided out of 867,012. Class 89(1). [Also in Group XXII] A bolted joint, e.g. comprising a nut 34 and bolt 13 of the kind described in Specification 867,012 includes a substantially incompressible washer 53, having opposed end faces 55, 56, one or both of which is provided with a layer of dry lubricant. An outer annular flange 54 may be provided to enable a sub-assembly to be made of the washer and nut 34. The lubricant may be, e.g., molybdenum disulphide or a polar wax applied in a liquid base which evaporates to leave a dry wax film.
Patent GB-1456186-A (GB)
Title: Rotary slitting
IPC: B26D7/26
Filed: 1975-05-24
Abstract: 1456186 Slitting webs S& S CORRUGATED PAPER MACHINERY CO Inc 24 March 1975 [29 March 1974] 12109/75 Heading B4B Apparatus for longitudinally slitting a travelling web comprises a rotatable drive shaft 11 on which are mounted a plurality of cutting heads 15a-23a and selectively-operable locking means for maintaining the heads in adjusted positions along the shaft, a second drive shaft 12 having similarly mounted cutting heads 15b- 23b and means for axially moving the shaft 12 to bring the respective cutting head into cooperating relationship. The locking means is in the form of a resilient tube 33 connected by coupling means 35, 36, Fig. 3, passages 39, 34, rotary seal 42, 44, to a source of fluid pressure. A pressure bar 29 is mounted within a slot 26 and acts against a key 50 fixed to its respective head and is sufficiently flexible to permit it to engage a number of such keys along the length of the slot; three equi-spaced slots are provided in the bar to accommodate respective keys 50 of associated heads as shown in Fig. 1. Retaining strips 52, Fig. 2, also serve as a guide for the keys as the heads are adjusted along the shaft. Disc cutters, e.g. (61a, 61b), Figs. 6 and 7 (not shown) are secured to the respective heads, the mating blades being urged into contact by springs (62) means being provided to move the shaft 12 axially in order to load the springs.
Patent GB-1471763-A (GB)
Title: Bolt anchoring device
IPC: F16B13/06
Filed: 1975-03-17
Abstract: 1471763 Anchor bolts RAWLPLUG CO Ltd 17 March 1975 [19 March 1974] 12218/74 Heading F2H An anchor bolt 1 comprises a bolt or stud 3, an expansible sleeve 11 surrounding part of the bolt or stud adjacent a first end of the latter, a tapered expansion member 7 on the bolt or stud at or adjacent the first end and divergent towards said first end, co-operable with a first end of the sleeve 11 to radially expand the latter, a spacer tube 14 on the bolt or stud 3 between the second end of the sleeve 11 and the second end of the bolt or stud 3, and an annular member of deformable material between the sleeve and the tube to resist relative rotation between the sleeve and the tube. As shown, the means is a rubber or neoprene washer 17 between the adjacent ends of the sleeve 3 and the tube 14. In addition, these adjacent ends may be inclined relative to a plane normal to the longitudinal axis of the bolt (Fig. 3, not shown). The sleeve has four equispaced splits 12 extending over 90% of its length, and external knurling (13) (Fig. 2, not shown) to grip the wall of a bore 21 in which the anchor bolt is secured. The expansion member 7 may be a nut threaded on the bolt 3, or a tapered head of the bolt. The bolt may have a head 2 at its second end, or a thread to receive a nut.
Patent GB-474610-A (GB)
Title: Improvements in or relating to parachute signal or illuminating devices
IPC: F42B4/28
Filed: 1936-04-30
Abstract: 474,610. Parachute signals &c. McENTEGART, J. M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 30, 1936, No. 12340. [Class 9 (ii)] A parachute signal or illuminating device adapted to be projected to or released at a height in the air comprises a flare candle 1 enclosed in a metal or reinforced paper casing 2 and securely retained therein by a sealing disc and turnover 4, which also serves to anchor the parachute cord to the flare candle. The folded parachute 5 is enclosed between two semi-cylindrical pieces of metal 6 hinged to the turnover by rings or looped metal strips 8, the parachute being retained longitudinally in its casing by a top cap 7. The shields 6 are held in position by a heat-destructible retaining means 9 of wire, string, cord, tape &c. which passes through ports 11 in the casing 2 and through a channel 10 in the candle 1. On ejection of the device from a firearm or discharge tube, the candle is ignited and, after it has burned for a period dependent on the distance of the channel 10 from the point of initial ignition, the retaining means 9 is burned through whereupon the shields 6 fall back releasing the parachute. The shields remain attached to the casing 2 and form a flight-stabilizing structure adapted to baffle a part at least of the current of hot gases arising from the burning composition. The opening movement of the shields may be restricted so that when open each shield is at a slightly upward inclination to the horizontal. Specification 300,217, [Class 9 (ii)], is referred to.
Patent GB-698104-A (GB)
Title: Television apparatus
IPC: H04N9/66
Filed: 1951-05-28
Abstract: 698,104. Cathode-ray tubes. RADIO CORPORATION OF AMERICA. May 28, 1951 [May 29, 1950; June 22, 1950], No. 12494/51. Class 39(i) [Also in Group XL(b)] A cathode-ray tube for use as receiver in a colour television system comprises a screen divided up into a large number of small areas which each fluoresce under excitation by an electron beam in a respective one of three colours. Means being provided for controlling the excitation of the areas so as to control the colour reproduced upon the screen of the cathode-ray tube. In the cathode-ray tube shown in Fig. 1, the screen 34 comprises a large number of areas which fluoresce in either red, green or blue as illustrated in Fig. 4. An apertured mask 52 is arranged in the path of the electron beam to the screen, the colour reproduced depending upon the direction from which the beam impinges upon the screen after passing through an aperture in the screen. As shown in Fig. 1 this direction is controlled by means of auxiliary deflecting plates 48, 50; alternatively electron magnetic deflecting means may be provided. In an alternative arrangement, Fig. 6 (not shown), the tube is provided with three electron guns which are symmetrically situated with respect to the axis of the tube, the colour produced depending upon which electron gun is operative. In a further arrangement, shown in Fig. 3, the screen comprises a large number of colour lines or strips arranged in the sequence green, red, blue, red, green, &c. Positioned in front of the screen is a grid of wires 106, alternate wires being connected together as illustrated. In this arrangement, red colour is.produced by placing a positive potential on both sets of grid wires at the same time, while by making one set negative either green or blue may be produced. To produce white light, both sets of wires are sent negative thereby defocusing the incident electron beam so that red, green and blue strips are simultaneously excited. Reference has been directed by the Comptroller to Specifications 685,661 and 689,821, [both in Group XL(b)].
Patent GB-541390-A (GB)
Title: Black-out window
IPC: E06B3/50
Filed: 1940-08-02
Abstract: 541,390. Windows. CLEGHORN, A. L. Aug. 2, 1940, No. 12499. [Class 20 (iii)] The window sashes are connected, as shown in Fig. 3, by links B pivoted on pins secured to base plates C<SP>1</SP> screwed into each jamb, the ends of the links pivoting in clips which are screwed to the adjacent stiles. The upper ends of the stiles of the upper sash and the lower ends of the stiles of the lower sash are fitted with pins which slide in slots in metal plates A secured to the jambs: When opening the window, a spring lock C is released and the upper sash moves downwardly and outwardly and the lower sash upwardly and inwardly, air passing through the opening between the balanced sashes.
Patent GB-437599-A (GB)
Title: Improvements in or relating to filter tips for cigarettes
IPC: A24D3/10
Filed: 1934-04-26
Abstract: 437,599. Filter tips for cigarettes. WIX, A., 338, Goswell Road, London, and MAY, R. F., 9, Manor Road, Potters Bar, Middlesex. April 26, 1934, No. 12610. [Class 8 (ii)] [See also Groups VI and VIII] Filter tips for cigarettes are produced directly from strip material comprising a carrier layer having sufficient strength to enable the material to be utilized in filter-tip forming mechanism and to resist deformation of the filter tips produced, and an absorbent layer of substantial thickness at one or both sides of the carrier layer, without any intermediate step involving the assembly of a number of such strips. In one form, the strip material consists of a carrier layer of stiff paper or like material having on one or both sides a layer of cottonwool or like absorbent material. The strip may be formed into a filter tip by coiling in spiral form, as in Fig. 3, or by folding or bunching a length of the material to an approximately zigzag formation, as in Fig. 5. In modifications, (1) the strip consists of a number of layers of crepe paper and a single layer of cottonwool, textile or other absorbent material, preferably attached by stitching, spots of adhesive, &c. ; (2) the absorbent layer consists wholly or in part of silk, artificial silk or the like. Specification 311,831, [Class 8 (ii)], is referred to.
Patent GB-606636-A (GB)
Title: Apparatus for recovering volatilizable metals
IPC: C22B5/16
Filed: 1942-09-08
Abstract: 606,636. Magnesium; calcium; zinc; cadmium; extracting metals. SCIENTIFIC & INDUSTRIAL RESEARCH, HONORARY ADVISORY COUNCIL FOR. Sept. 8, 1942, No. 12663. Convention date, Oct. 22, 1941. [Class 82(i)] Magnesium, calcium, cadmium, zinc, and other volatile metals are produced by direct thermal reduction in a retort by heating material containing the metal with a reducing-agent in a reducing portion of the retort to form metal vapours, and subjecting the vapours to fractionating condensation in a condensing zone of the retort to deposit separately in solid form metals of different vapour pressures. When producing magnesium, sodium and like pyrophoric material condenses at the outer end of the condenser, and may be withdrawn in air while hot before withdrawing the magnesium. The retort is recharged while still hot, for a fresh vaporization process. The condenser may be in the form of a liner 5, Fig. 1, inserted in the end 1 of the retort which is outside the furnace, said liner having a bevelled end 6 fitting a bevelled shoulder 7 in the retort. A perforated heat-retarding shield 23 may be fitted between the vaporizing zone 3 and the condensing end 1 of the retort. The heat-retarding shield may be in the form of perforated plates 24, Fig. 3, the perforations being staggered to provide a sinuous passage for the vapours passing into the condenser. The condenser is divided into two intercommunicating zones by a partition 21a, Fig. 1, the outer zone being provided with a water-jacket 9 for obtaining the desired temperature. The jacket 9 may be movable along the condenser, as shown in Fig. 2, to produce the desired temperature in any part thereof, or a series of jackets 9<2>, 9<3>, 9<4>, Fig. 3 may be provided to obtain graduated temperature zones. An inner water jacket 15 Fig. 1 may be provided in the outer of the two condenser zones. The partition between the two condenser zones may be in the form of a series of perforated plates 21, 21<1>, Fig. 3 which provide a sinuous path for the vapours between the two zones. The liner 5 is closed by a plate 14, Figs. 1 and 3 carried by a plate 16 which closes the end of the retort and also carries the partition 21a or 21, 21<1> between the two condenser zones, and a conduit 13 for producing vacuum within the retort.
Patent GB-144068-A (GB)
Title: Improvements in tripod and like stands for cameras, theodolites and similar instruments
IPC: F16M11/14
Filed: 1919-05-20
Abstract: 144,068. Crockford, A. H. May 20, 1919. Self-levelling apparatus.-Tripod and like stands for cameras, theodolites, &c., of the kind comprising a head b carrying a member d on which the instrument can be mounted, the member d being arranged so that it can move as a conical pendulum under the action of a weight attached to the rod g, are fitted with a clamping-device consisting of a spherical surface c on the head b and a cup-shaped washer i. Clamping is effected by turning the nut k on the rod g, forcing the washer i into close contact with the surface c by means of the sleeve j. In addition, slotted plates n extending from the legs may also be used as clamping-devices and actuated by the nut k. The member d may be a ball-and-socket joint or a gimbal joint.
Patent GB-991344-A (GB)
Title: Improvements in or relating to blowers
IPC: F24H3/04
Filed: 1963-04-01
Abstract: 991,344. Centrifugal blowers. R. ZINSSER. April 1, 1963, No. 12897/63. Addition to 968,737. Heading F1C. [Also in Division F4] In a blower as claimed in any one of claims 1 to 4 of the parent Specification, the wall 6 of the casing is bent inwards at one end to produce a vortex b in the air or like medium flowing through the blower. This results in an accelerated discharge and avoidance of a low pressure area at c. The blower has an axial inlet at each end of the impeller 2. A driving motor 3 within the impeller 2 is mounted on a strip bridging one of the inlets. The impeller is axially divided into five chambers, the partition walls of the axially innermost chamber having smaller inlets than those in the axially outermost partitions. Guide plates 9 arranged in the discharge orifice 7 serve as supports for the elements of a heating grid 8.
Patent GB-1408825-A (GB)
Title: Pipe supports
IPC: F16L3/205
Filed: 1973-03-17
Abstract: 1408825 Releasable fastenings PIPE SUPPORTS Ltd 6 March 1974 [17 March 1973] 12942/73 Heading E2A [Also in Division F2] A releasable fastener used to lock a pipe support has two keys 32, 33 with teeth 34, 35, movable at right angles to the length of a draw-bar 25 within a bracket 38 into a locking position (as key 32) or a parking position (as key 33). The key 32 has two holes 41a, 41b which are used, in conjunction with a hole 43 in the bracket 38, to locate the key 32 in either position. The key 33 has similar facilities.
Patent GB-935373-A (GB)
Title: Improved distribution network
IPC: H04N7/173
Filed: 1959-12-16
Abstract: 935,373. Electric selective signalling systems. SKIATRON ELECTRONICS & TELEVISION CORPORATION. Dec. 16, 1959 [Dec. 17, 1958], No. 12958/60. Divided out of 935,371. Drawings to Specification. Class 40 (1). The description is identical to that contained in Specification 935,371, which is referred to but the claims relate to the distribution network connecting the central office with the remote television receivers. Specifications 935,372, 935,374, 935,375 and 935,376 also are referred to.
Patent GB-271642-A (GB)
Title: Heel attaching in boot and shoe manufacture and means employed in connection therewith
IPC: A43D25/12
Filed: 1926-05-21
Abstract: 271,642. Creese, W. May 21, 1926. Heels, machines for.-Relates to the attaching of heels to soles before the latter are secured to their shoes, and consists in an apparatus comprising a sole support or guide and an associated guide or equivalent member to determine the correct position of the heel on the sole. The sole support may comprise a block 1 of wood, with its upper surface shaped to conform to a moulded sole 12. A leather layer 2 is cut to conform with the toe end of the sole and is secured to the block by a metal plate having a bridge portion 7 to engage over the sole and its central portion out away so that the operator can see that the sole is properly positioned. Similar curved leather and metal strips 8, 9 serve for positioning the heel. The apparatus is specially intended for Louis heels, a pad. 17 being provided for holding the usual cemented split portion 13 of the sole against the heel breast. The pad is connected by springs 18 with a forked lever 19 provided with a pawl 22 for holding the pad in operative position.
Patent GB-1376508-A (GB)
Title: Purification of cyanuric acid
IPC: C07C51/265
Filed: 1972-03-21
Abstract: 1376508 Cyanuric acid purification FMC CORP 21 March 1972 [22 March 1971] 13047/72 Heading C2C Crude cyanuric acid is purified by contacting with an extraction acid solution (e.g. hydrochloric, hydropromic, sulphuric, nitric and phosphoric acids), at below 165 C. to extract the impurities. The extraction acid solution may be hydrolysed to convert the impurities to cyanuric acid.
Patent GB-181920-A (GB)
Title: Improvements in or relating to mixing machines
IPC: D21B1/34
Filed: 1921-05-07
Abstract: 181,920. Adams, F. E., Adams, G. H., and Linkie, T. D. M. May 7, 1921. Stationary batchmixers with rotary stirrers. - Relates to a mixing- machine of the type in which the container can be tilted and contains rotating and fixed blades. The invention consists in dividing the upper part of the container 3 longitudinally into two parts 1, 2 hinged to the lower part and retained in this closed position by a link 10. A counterweighted lever 13 is secured to one of the trunnions 7 to facilitate discharging the container.
Patent GB-138368-A (GB)
Title: Improvements in and relating to microphones
IPC: H04R23/00
Filed: 1916-09-15
Abstract: 138,368. Tucker, W. S. Sept. 15, 1916. Thermal instruments.-Relates to thermic microphones intended especially for detecting the sound of discharge of guns, and consists in the combination of an electrically-heated thin conductor with a sound-box provided with a hole for producing a blast of air past the conductor. As shown in Fig. 3, the conductor m is wound zigzag fashion on a thin frame of mica n, which is then secured in a central hole in a mica disk f. The ends of the conductor are soldered to metal rings p, one on each side of the mica disk f. These parts are then fastened between metal rings d, g, Fig. 2, in a recessed block a attached to a sound-box b opposite a hole l in one side of the box. Contact terminals i, j are provided; the ring g is formed with a tubular extension h; and the sound-box is adjustably made in two telescopic parts. For use under water, the tube h may be connected to another box provided with a diaphragm. The variations in the current may be detected directly or through a transformer, or by means of a wheatstone-bridge arrangement. In a modification, the conductor is carried by a transverse rod instead of by the frame n.
Patent GB-454726-A (GB)
Title: Clocks
IPC: G04B37/00
Filed: 1935-05-02
Abstract: 454,726. Clocks. WILLIAMSON CLOCK CO., Ltd., and SEAGER, J. H., 317, Edgware Road, London. May 2, 1935, No. 13123. [Class 139] In a " sun-ray " clock the ornamental fingers or rays of glass, synthetic resin, &c. are secured by adhesive to metal fingers 1, 5, the fingers 1 being integral with or riveted, welded or otherwise secured to a metal spider or ring 2 while the shorter metal fingers 5 are clamped between the fingers 1 and a ring 3 screwed at 4 to the fingers 1. The metal fingers 5 may be dispensed with, the glass &c. fingers being clamped between the fingers 1 and ring 3. Alternatively, the shorter fingers may be secured to ring 2 and the longer fingers of glass &c. with or without metal backings clamped therebetween and ring 3. Additional rings larger than ring 3 may be similarly used for securing further layers of fingers, and the clamped fingers may be also secured by adhesive or other means. The structure may be of elliptical or other shape. Attached to ring 3 are bars 6, 8, the bar 6 having a keyhole slot 7 for securing the casing to a pin on a wall. The clock movement located in space 9 is screwed to ring 2 by a clamping ring 10, or secured thereto by a suitable bracket. Alternatively, when the spider 2 is of disc form the dial is provided on or over the central part thereof and the mechanism secured thereto. The clock when suspended on a wall by means of the slot 7 may be spaced therefrom by a projection secured to the lower end of bar 6 and by the hand-setting spindle.
Patent GB-914592-A (GB)
Title: Electrical semi-conductor device
IPC: H01L23/488
Filed: 1959-04-17
Abstract: 914,592. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. April 17, 1959 [April 23, 1958], No. 13142/59. Class 37. [Also in Group XXII] A semi-conductor element is mounted in a casing comprising a metal part including a rim fitting into a channel in another metal part of different hardness. After assembling the parts with the rim in the channel, the housing is sealed by plastic deformation in the cold of one of the parts. In one embodiment the softer part is a threaded copper bolt 4 with an annular channel 3. Sealing is effected by deforming the edges of the channel over the flanged edge of steel cylinder 6. External connection to the upper face of the semi-conductor element is provided by a stranded copper or silver wire (Fig. 4) with a conical solid end engaging the element. The wire leaves the housing through a metal tubule 8 in a sintered glass bead 7. The wire, which is deformed and solid where it passes through the tubule, is pinch sealed therein in vacuo or in an inert atmosphere, the abutting surfaces of the wire and tube being coated with a low-melting metal, e.g., tin, to facilitate sealing. In an alternative arrangement, the wire consists of a solid-headed part 11b of silver and an upper part 11a of tinned copper, the abutting solid ends 13a, 13b having the cross-sections shown to facilitate evacuation of the housing prior to sealing. During the pinch sealing process, the two parts of the wire are joined and sealed within the tube. In a modification of the above device, the copper base is internally threaded for mounting on a cooling block and silverplated to allow etching of the mounted semiconductor element without copper contamination of the etchant. A transistor is also described, comprising two sub-assemblies 5, 6, 7, 8 of the construction shown in Fig. 1, sealed in annular grooves on opposite faces of an apertured plate carrying the semi-conductor element. In another arrangement (Fig. 3) comprising copper base-plate 4 and steel cap 2, connections are sealed through the base-plate by glass-metal seals, as shown in Fig. 3a, the edges of apertures 10 being deformed in the cold state to fix the seals.